Re: DSE 2015 answer

Posted by knowpraveen on Jun 17, 2016; 9:07am
URL: http://discussion-forum.276.s1.nabble.com/DSE-2015-answer-tp7600806p7601480.html

There are three options for each of the four testers to rank a particular kind of chocolate. The chocolate A gets the sum of ranks equal to four only for 1 combination i.e (1,1,1,1). On the whole, there are 3x3x3x3=81 options available to the for testers. Therefore, P=1/81